Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
LITCHFIELD KENNEBEC 12 1 5.64 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
6 m
(20 ft) 		3 m
(10 ft) 		11 ha
(27 ac) 		330,000 m3
(268 ac-ft) 		3 km2
(1.3 mi2)

Secchi Disk Transparency Graphs

Graph Legend: Secchi symbols = average Secchi Disk Transparency Values; tick marks = maximum and minimum values for each year.

Water Chemistry and Trophic State Parameters

Table Legend:

Color: Color (SPU), Alk: Alkalinity (mg/l CaCO3), SpCon: Specific Conductivity (\(\mu\)S/cm), pH: pH (standard units)

TP = Total Phosphorus (\(\mu\)g/L) – EC: Epilimnion Core, SG: Surface Grab, BG: Bottom Grab, PG: Profile Grab

SDT = Secchi Disk Transparency (m) – Min: minimum value, Avg: average value, Max: maximum value, n: number of months with Secchi readings per year, b: number of times Secchi disk was observed touching the bottom of the lake per year

Chl = Chlorophyll-a (\(\mu\)g/L) – Min: minimum value, Avg: average value, Max: maximum value
Year Color Alk SpCon pH TP-EC TP-SG TP-BG TP-PG SDT-Min SDT-Avg SDT-Max SDT-n SDT-b Chl-Min Chl-Avg Chl-Max
1998 11 4.3 4.3 4.4 1 4.9 4.9 4.9
1999 11 4.4 4.5 4.6 1 3.9 3.9 3.9
2000 4.4 4.4 4.4 1
2001 18 7 19 4.0 4.0 4.0 1 2.7 2.7 2.7
2009 16 11 3.6 3.6 3.6 1 5.4 5.4 5.4
2010 13 18 4.3 4.3 4.3 1 5.9 5.9 5.9
2011 14 15 5.0 5.0 5.0 1 2.7 2.7 2.7
2012 15 10 4.8 4.8 4.8 1 2.4 2.4 2.4
2013 16 17 4.6 4.6 4.6 1 3.5 3.5 3.5
2014 16 13 4.0 4.0 4.0 1 6.2 6.2 6.2
2015 14 10 5.3 5.3 5.3 1 4.3 4.3 4.3
2016 15 13 5.4 5.4 5.4 1 2.4 2.4 2.4
2017 16 7 18 4.6 4.6 4.6 1 3.3 3.3 3.3

Lake Chemistry and Trophic Summary Data - Overall Summary Values:

Avg Color Avg Alk Avg SpCon pH Avg TP-EC Avg TP-SG Avg TP-BG Avg TP-PG SDT-Min SDT-Avg SDT-Max SDT-n Chl-Min Chl-Avg Chl-Max
15 7 13 18 3.6 4.5 5.4 1 2.4 4 6.2

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2010-08-27
2011-08-22
2012-08-28
2013-08-19
2014-08-21
2015-08-07
2016-08-22
2017-08-18
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 23 8.9 25 7.8 26 8.7 24 7.6 25 8.0 25 7.3 25 7.8 23 7.2
1 23 8.9 25 7.7 26 8.7 24 7.5 22 7.8 24 7.1 25 7.7 23 7.2
2 21 8.8 25 7.7 26 8.6 22 6.4 21 6.5 24 7.2 25 7.7 23 6.8
3 21 7.7 21 5.7 21 2.3 19 0.5 19 3.7 22 6.3 25 7.5 20 0.6
4 18 0.2 15 0.9 15 0.3 15 0.3 15 0.2 16 1.1 19 1.2 14 0.2
5 14 0.2 12 0.4 12 0.3 13 0.2 12 0.2 13 0.3 15 0.6 12 0.1
6 12 0.2 12 0.2 11 0.2 12 0.2 11 0.2 12 0.4 13 0.4 11 0.1
7 12 0.2

Recent temperature and dissolved oxygen profile plots

Temperature (°C), Dissolved Oxygen (mg/L)